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大学英语四级仔细阅读专项强化真题试卷15(题后含答案及解析)
题型有：1.
Childrenareadelight.Theyareourfuture.Butsadly,hiringsomeoneto
takecareofthemwhileyougotoworkisgettingmoreexpensivebytheyear.
Earlierthismonth,itwasreportedthatthecostofenrollinganinfantorsmallkidata
childcarecenterrose3%in2012,fasterthantheoverallcostofliving.Therearenow
largestripsofthecountrywheredaycareforaninfantcostsmorethanatenthofthe
averagemarriedcouple’sincome.Thisisnotnecessarilyanewtrend,butitisa
somewhatpuzzlingone.Thepriceofprofessionalchildcarehasbeenrisingsincethe
1980s.Yetduringthattime,payforprofessionalchildcareworkershasstoodstill.
Actuallycaregiversmakelesstoday,inrealterms,thantheydidin1990.Considering
thatlaborcostsareresponsibleforupto80%ofadaycarecenter’sexpenses,one
wouldexpectflatwagestohavemeantflatprices.Sowho’stoblameforhigher
childcarecosts?Childcareisacarefullyregulatedindustry.Stateslaydownrules
abouthowmanychildreneachemployeeisallowedtowatchover,thespacecare
centersneedperchild,andotherminutedetails.Andthestrictertheregulations,the
higherthecosts.Ifithastohireacaregiverforeverytwochildren,itcan’treally
achieveanyeconomiesofscaleonlabortosavemoneywhenotherexpensesgoup.In
Massachusetts,wherechildcarecentersmusthireoneteacherforeverythreeinfants,
thepriceofcareaveragedmorethan$16,000peryear.InMississippi,wherecenters
musthireoneteacherforeveryfiveinfants,thepriceofcareaveragedlessthan
$5,000.Unfortunately,Idon’thaveallthedaycare-centerregulationshandy.ButI
wouldn’tbesurprisedifastheruleshavebecomemoreelaborate,priceshaverisen.
Thetradeoff(交换)mightbewo
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